Concept

Identification of immunogenicity of Self-amplifying RNA SARS-CoV-2 lipid nanoparticle vaccine candidate induces high neutralizing antibody titers in mice

  • IFN-γ ELISpot kits were used to assess IFN-γ T cell response.
  • Semi-quantitative ELISA was used to observe antigen-specific IgG, IgG1 and IgG2a titers in mouse serum.
  • Neutralization ability of vaccinated animals’ and recovered patients’ serums against SARS-CoV, SARS-CoV-2, MERS-CoV, and 229E-CoV were assessed using HIV-pseudotyped luciferase-reporter based system.
  • The ability for the serum of vaccinated animals to neutralize wild type SARS-CoV-2 virus was observed using a neutralization assay on Vero-E6 cells.
  • Cytokine response fo splenocytes and serums of each mice were quantified using a custom 25-plex ProcartaPlex Immunoassay (ThermoFisher Scientific, UK) on a Bio-Plex 200 System (Bio-Rad).

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Updated 2020-08-17

Tags

SARS-CoV-2 (COVID-19)

Biomedical Sciences